A NULL pointer dereference flaw was discovered in GnuTLS's
gnutls_x509_dn_oid_name(). The function, when called with the
GNUTLS_X509_DN_OID_RETURN_OID flag, should not return NULL to its
caller. However, it could previously return NULL when parsed X.509
certificates included specific OIDs (CVE-2014-3465).

A flaw was found in the way GnuTLS parsed session ids from Server
Hello packets of the TLS/SSL handshake. A malicious server could use
this flaw to send an excessively long session id value and trigger a
buffer overflow in a connecting TLS/SSL client using GnuTLS, causing
it to crash or, possibly, execute arbitrary code (CVE-2014-3466).
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